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HC705JJ7GRS/D Datasheet(PDF) 49 Page - NXP Semiconductors

Part # HC705JJ7GRS/D
Description  Low-Cost, HC05 Core MCU in 20-Pin Package (MC68HC705JJ7) or 28-Pin Package (MC68HC705JP7)
PDF  230 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

HC705JJ7GRS/D Datasheet(HTML) 49 Page - NXP Semiconductors

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Interrupts
Interrupt Processing
MC68HC705JJ7/MC68HC705JP7 — Rev. 3.0
General Release Specification
Interrupts
Figure 4-2. Interrupt Flowchart
NO
EXTERNAL
INTERRUPT?
I BIT SET?
FROM
RESET
YES
YES
CLEAR IRQ LATCH.
NO
EXECUTE INSTRUCTION.
UNSTACK CCR, A, X, PCH, PCL.
FETCH NEXT
INSTRUCTION.
STACK PCL, PCH, X, A, CCR.
SET I BIT.
LOAD PC WITH INTERRUPT VECTOR.
CORE TIMER
INTERRUPT?
YES
NO
TIMER
INTERRUPT?
YES
NO
SERIAL
INTERRUPT?
YES
NO
ANALOG
INTERRUPT?
YES
NO
SWI
INSTRUCTION?
YES
NO
RTI
INSTRUCTION?
YES
NO
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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